Air-cooled motor.



F. MOENCH.

AIR COOLED MOTOR.

APPLICATION FILED APR. 29. 1915.

- incassa.

FREDERICK MOENCH, OF RUSIA-IVILLE, ILLINOIS.

AIR-COOLED MOTOR.

T0 all whom t may concern:

andv StateA of Illinois, have invented certain Y new and useful Improvements in Air-Cooled `Motorspof which'the following is a specification.

My invention relates to improvements in` air cooled motors, and 1t consists 1n the combinations, constructions, andarrangements herein described and claimed.

An object ofmy invention is tolprovide a 1 motor of the internal combustion type which does not necessitate the use cooling the same. p

A further object of my invention is to provide a device of the type described which is of light weight, owing to the use of aluminum for the radiating surface.

A further obj ect of my invention is to proof water for vvide a. motor or engine having means for rapidly radiating the heat developed on the interior of its cylinders owing to the novel `construction whereby aluminum forms the ducting medium.

Other objects and advantages'will appear in the following specilication, and the novel features o f the invention will be particu-Y larly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming part of this application, in whichl A Figure l is a perspective view -ofa motor constructed according to my invention. Fig. 2 shows the cylinder core prior to the application of the aluminum radiating medium. Fig. 3 is a fragmentary sectional view through a portioniof the device, and gig. 4 is a section along the line lr-l of 'Ihe invention is applicable to internal combustion engines of alltypes. In the drawings I have illustrated anengine or motor of the so-called valve in head type. Incarrying out' my inventionI provide a cylinder ,core 1 which Vis smooth on the inside'and on the outside. Near one end of the cylinder and 'adjacent to the compression space or chamber, I provide a series pf perforations 2extending through the Walls of the core. In Fig. 3 I have shown the core provided with perforations and have also indicated openings '3 and Ll'for the valves,

Specification of Letters Patent. Patented De@ 21, 1915, Application filed April 29, 1915.A` Serial No. 24,688. l

an exhaust opening 5v, and a spark plug opening 6. The arrangement of these openings is common and forms no part of my` invention.

On the outside of the cylinder a coating of-aluminum is plated. This outside coating I haveindicated at 7. The plating may be carried out by any suitable process, but

i I prefer to use that process described in my pending application Serial Number 20741 liledApril 12, 1915.` The cylinder core with its aluminumcoating is then placed in a mold or form made of'ni'aterial of such a nature that it maybe heated to 1400o Fahrenheit withoutdisintegrating This mold should be heated. and at the same time` a sufficient quantity of pure aluminum should be heated to the melting point and then poured into the hot mold. The purpose'of the mold is to form flanges like those shown at 8 on theV outer surface of the cylinder. The number of flanges and their depth will depend upon the radiation required. When the casting is removed from the mold, it should be left in the--rough, since the rough surface insures better radiation. The inside of the core is also plated with aluminum as shown at 9 in Fig. 3, as far as the compression chamber extends, and-the inside plating is connected to the outside plating by a filling 9x of aluminum in the openings 2.

In order to secure a maximum` radiation,

I plate the exhaustl pipe 10 with a coating of,

freezing orbursting of the radiator pipe and also the liability of overheating the engine due to an insuiiicient supply 0f cooling liquid. A motor constructed in accordance with the present invention requires little care as far as the radiation of heat is concerned. While suflicient heat radiation is secured, the motor as a whole is light yin `comparison with water cooled motors of th 'd same power.d

I am aware that air cooled motors having radiating ianges are, broadly speaking, old, but the provision of a motor having an aluminum plating on the outside with integral aluminum flanges and aluminum plating on the inside connected by a series yof aluminum l,heat conductors, I believe to be new and to present the merits heretofore mentioned.j

I claim z-f 1. An internal combustion enginehaving a cylinder consisting of a cylindricalmetal core having an outside plating of aluminum, aseries of integral outwardly extending flanges carried by said aluminum plating, a

- -plating of aluminum disposed Witl1in`the cylinder core near one endof the cylinder, and an aluminum heating conducting "bond j between said outer and said inner aluminum plating.

2. An internal combustion engine com-A .arranged to pass through the perforations in the iron core, and a series of integral outwardly extending aluminum heat radiating anges carried by said outer plating.

3. An internal combu'stionuengine comprising a cylindrical iron core havingy a series of perforations near one end, inner and.

outer platings of a relatively light metal of high heat conductivity, said inner and outer platings extending over a portion of the iron outer platings of a relatively light metal of high heat conductivity, integral heat radiating flanges carried by saidouter plating, and heat conducting bonds connecting said inner and said outer platings. FREDERICK MOENCH.

lVitnesses H. H. SPEED, DON GARRISON. 

